Carbureter.



Patented July 13, was.

4., GRAU. GARBURETER.

(Application filed Kay 27, 1898.

2 Shank-Shea! I.

(No Model.)

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No. 629,246. Patant ed my 13, I899.

. J. .GBAU.

GABBURETER.

(Applicnfidn tiled m 27, 1898.) {lo Model.) 2-Sheots-8heai 2 WITNESSESIN VENTOH v M BY v ATTORNEY,

UNITE j "STATES PATENT O IC JOSEPH GRAU, 'OFZNEVV YORK, N. Y.

CARBUFiETER.

. SPECIFICATION forming part of Letters Iiiatezut No. 629,246, datedJuly 18, 1899.

Application'filed May 27,189 8." Serial No. 6 81,91 2. (No model) To allwhom, it may concern:

Be it known thatI, JOSEPH GRAU, a citizen -of the Republic of France,and a resident of New Yorkcity, county of New York, and State of NewYork, haveinvented certain new and useful Improvements in Gas-GeneratingAp My invention relates to an improvement in carbureters; and the objectthereof is to proc vide an improved device of this character by means ofwhich carbureted air may be used in connection with incandescent mantlesfor illuminating purposes and generated without the application of heatin any form tothe liquid contained within the apparatus.

The invention consists in the means for and process of agitating theliquid in the reservoir and the oil-tank, whereby the said liquid iskept at an even temperature without the application of heat fromexternal sources, the liquid being supplied to the carburetor under pressure.

In the drawings, Figure 1 is a side elevation of the device, a portionof the carbureting tank and the oil-tank being broken away; and Fig. 2is a plan view of the device.

In carrying out my process of carbureting airlein ploy, preferably,astand 1,upon which is mounted a caloric engine 2 or any other suitablemotor adapted to drive the rotary blower 3, mounted upon the standadjacent tosaid engine. Upon one end of the fly-wheel shaft of theengine is fixed a pulley 5, and upon one end of the blower-shaft isfixed a pulley 6. The belt 4 is adapted to transmit the power from theengine or motor to the blower; An air pipe 7, attached to said blower,communie cates with the air-tank S, mounted upon the stand 1.pressure-gage 9 and a stand-pipe 10, which is provided with asafety-valve ll of any approved type.

The branch pipe 12,coinmunicating with the stand-pipe 10, is providedwith a cut-off 13 and terminates in an elbow 14, which connects it withavertical air-pipe 1-5. This airpipe enters the carbureting-tank 16, andits lower end is provided with a series of perfoto the other.

This air-tank 8 is provided with a rational? and is submerged in thebenzin contained-in said tank. A drain-cock 18 is adapted to draw thebenzin from the tank wvhen desired, and a suitable receptacle 19 may beplaced beneath the stand 1 to collect the liquid drawn from the tanks.

Adjacent to the carbureting-tank 16 and fixed to the stand 1 istheoil-tank 20. A pipe 21, near thelower ends of said tanks 16 and 220,permits the benzin to flow freely from one tank A branch pipe 22connects the vertical'air-pipe with the vertical pipe 23, whichcommunicates with thetank and with the reservoir 24. A valve 26, of anyapproved construction, is connected to the lower end of the pipe 27,which communicates between the bottom of the reservoir 24 and the upperpart of the oil-tank'20, the valve 26' being secured thereto adjacent tothe elbow 28, located within the tank 20. A float 29, of any approvedconstructionfis provided with a stem 30,adaptheight. Aglass tube 31,communicating with the upper and lower, parts of the tank 20, shows thelevel of the benzin within said tank, and the glass tube 32, mountedupon the side ot' the reservoir 24, shows at a glance the height of thebenzin contained therein. A screw-plug 33, located in the top of thereser voir 24, provides means whereby the reservoir may be filled whendesired.

The service-pipe 34, communicating with the upper part of thecarbureting-tank 16, is adapted to convey the carbureted air to anydesired point. A branch pipe 35, connected to the service-pipe3ei, isadapted to convey the carbureted air to the caloric engine 2, wherebythe same is'heated and operated. In the event of any other form of motorbein g substituted for the caloric engine this pipe 35 may be dispensedwith.

In operation, power being comm unicated to the'compressor by means ofthe caloric engine or other motor, a volume of air is forced through thepipe 7 into the air-tank 8, the cutoff 13 being closed. The pressurewithin the tank having risen to a predetermined amount,

(usually about one pound, the safety-valve 11 lifts, and the airescapes'without passing into the carbureter. When it is desired toutilize the carbureting apparatus, the cut-off 13 is opened, and the airpasses from the tank 8 through the pipes 10 and 12 into the pipe 15. Aportion of this air passes downwardly through said pipe 15 and escapesthrough the perforations 17 at the lower end thereof and becomescarbureted as it passes through the benzin contained in the carbureter.A portion of the air, passing through the pipe 12 into the pipe 15,escapes through the branch pipe 22 into the vertical pipe 23. A portionof this air passes upwardly into the reservoir 24 above the surface ofthe benzin contained therein, and a portion of the air passes into theupper part of the oiltank above the float. Owing to the fact that thereis no escape for the air passing through the pipe 22, while thecarbureted air from ,the carbureting-tank 16 passes through theservice-pipe 84 and is consumed by the burners, a varying pressure isset up upon the benzin in the reservoir 24 and the oil-tank 20. Thisvarying pressure, which is slight, results in an agitation of thesurface of the benzin in the reservoir and asimilar eifect through themedium of the float upon which the air presses in the benzin containedin the oil-tank 20. By means of this agitation of the benzin within thereservoir 24 and the oil-tank 20 the henzin is kept at an eventemperature best adapted for the economical production of the carburetedair. It will readily be seen that when benzin is placed within thereservoir 24 it flows downwardly through the pipe 27, through the valve26 into the oil-tank 20, and through the pipe 21 into thecarbureting-tank 16 until the benzin within the oil-tank andcarburetingtank has risen to a predetermined height adapted to lift thefloat 29 and close the valve 26, thereby cutting oil? the supply ofbenzin from the reservior. As the benzin is consumed in the process ofcarbureting the air the float falls, the valve 26 opens, and the benzinflows downwardly again through the pipe 27 until a sutiicient quantityruns into the tank 20 to again lift the float and stem attached thereto,thereby closing the valve and cutting oi? the supply.

During the process just described auniform supply of benzin ismaintained in the oil-tank 20 and the carbureting-tank l6, andthis-supply of benzin is always kept at the uniform temperature desired.7

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

In a carbureting apparatus, a valve-controlled compressed-air tank, acarbureter, an oil-tank, an oil-reservoir, an air-pipe com municatin gbetween the compressed-air tank and carbureter through which air isadapted to flow, branch pipes communicating between JOSEPH GRAU.

Vitnesses: SYDNEY I. PRESCOTT, JOHN J. MoGRANE.

